Research/Patents/US 4949314
US 4949314

METHOD AND MEANS FOR INCREASING ECHO-RANGING-SEARCH RATE

Assignee

Filed

Aug 16, 1966

Granted

Aug 14, 1990

Location

SUNNYSIDE FL US

Abstract

A sonar system having a transmitting transducer adapted for being moved ag a predetermined path, a transmitter for energizing said transmitting transducer, an omni-directional receiving transducer spatially disposed behind said transmitting transducer, a sidewardly and downwardly looking receiving transducer contiguously disposed with said omni-directional receiving transducer, a receiver connected to the output of said sidewardly and downwardly looking transducer, a series connected detector, differentiator, delay, and time base generator coupled to the output of said omni-directional transducer, and a readout connected to the outputs of the aforesaid receiver and time base generator.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Jan 7, 1982

Rescinded

Feb 21, 1990

Duration

8 years, 1 month

Inventor

  • 1FRANCIS J. MURPHREE

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records